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Effect of ZnCl2 on the Performance of Antiscaling Nanoparticles for Long-Lasting Extrusion Injection
Abstract:
Conventional squeeze treatment scale inhibitors often suffer from short effective duration and require frequent reapplication. To address this limitation, this study focuses on developing long-lasting antiscaling nanoparticles with enhanced formation retention capacity. EDTMPS-Ca/Zn composite nanoparticles were synthesized via hydrothermal method by introducing ZnCl₂, and compared with zinc-free EDTMPS-Ca nanoparticles. A combination of FTIR, TGA, XRD, and SEM analyses was used to systematically characterize the material. This inhibition leads to the formation of an amorphous structure with a smaller particle size, a more uniform distribution, and enhanced thermal stability. Core flooding experiments confirm a significantly lower flowback concentration for the zinc-containing nanoparticles, revealing their stronger retention capability within the formation. The improvement is attributed to the combined effects of reduced particle size, increased specific surface area, and optimized surface charge induced by zinc ions. These factors collectively enhance the adsorption capacity. This work provides an effective metal-ion doping strategy for fabricating high-performance nanoscale materials for prolonged scale inhibition.
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53-58
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July 2026
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© 2026 Trans Tech Publications Ltd. All Rights Reserved
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